Installing Multicast Beacon (DBeacon)

DBeacon is a useful tool to help you debug your multicasting problems. It provides useful information regarding a particular multicasting group’s connection activity.


The following guide demonstrates how to configure your node for the ASIA-PACIFIC Aarnet beacon server. (The author is not aware of other international dbeacon servers currently running)

  • The easiest way to install the beacon software is to use the yum package manager which is included with Fedora. The beacon software is now included within the Access Grid repository for Fedora 13.
  • Start up "Terminal" and switch to superuser.
  • Issue the command:
yum install dbeacon

  • It is suggested to create a shell script file ( to assist with started and restarting the multicast beacon.

  • Simply create the file and add the following contents:

#! /bin/sh
killall -9 dbeacon
/usr/sbin/dbeacon -4 -n "<Insert beacon name here>" -b -O -a "<insert email address here>" -C AU

  • To ensure you can execute the newly created shell scripts, execute the following command:

chmod a+x

  • You should now be able to run the beacon software by issuing the command ./
  • To ensure the beacon is started upon "boot-up", it is recommened to create a crontab entry.  See Scheduling useful tasks section.


Special thanks to Douglas Kosovic (UQ) for making this package available as part of the Access Grid repository.

login or register to post comments